SPWR vs. CSIQ

Last updated Apr 1, 2026

Compare and contrast key facts about SunPower Corporation (SPWR) and Canadian Solar Inc. (CSIQ).

Performance

SPWR vs. CSIQ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SunPower Corporation (SPWR) and Canadian Solar Inc. (CSIQ). The values are adjusted to include any dividend payments, if applicable.

SPWR vs. CSIQ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
SPWR SunPower Corporation	-19.11%	-12.29%	11.53%	-84.11%	4.34%	-1.73%
CSIQ Canadian Solar Inc.	-41.73%	113.76%	-57.61%	-15.11%	-1.25%	-26.53%

Fundamentals

Market Cap SPWR : $1.08B CSIQ : $937.82M
EPS SPWR : $0.04 CSIQ : -$1.54
PS Ratio SPWR : 1.91 CSIQ : 0.17
Total Revenue (TTM) SPWR : $308.94M CSIQ : $5.60B
Gross Profit (TTM) SPWR : $142.21M CSIQ : $1.03B
EBITDA (TTM) SPWR : $59.64M CSIQ : $282.45M

Returns By Period

In the year-to-date period, SPWR achieves a -19.11% return, which is significantly higher than CSIQ's -41.73% return.

SPWR

• 1D: 4.10%
• 1M: -2.31%
• YTD: -19.11%
• 6M: -27.84%
• 1Y: -18.06%
• 3Y*: -50.25%
• 5Y*: —
• 10Y*: —

CSIQ

• 1D: 6.70%
• 1M: -21.80%
• YTD: -41.73%
• 6M: 6.21%
• 1Y: 60.12%
• 3Y*: -29.67%
• 5Y*: -22.17%
• 10Y*: -3.12%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

SPWR vs. CSIQ — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SPWR

SPWR Risk / Return Rank: 33
SPWR Sharpe Ratio Rank: 32
SPWR Sortino Ratio Rank: 37
SPWR Omega Ratio Rank: 37
SPWR Calmar Ratio Rank: 29
SPWR Martin Ratio Rank: 28

CSIQ

CSIQ Risk / Return Rank: 64
CSIQ Sharpe Ratio Rank: 64
CSIQ Sortino Ratio Rank: 68
CSIQ Omega Ratio Rank: 67
CSIQ Calmar Ratio Rank: 60
CSIQ Martin Ratio Rank: 61

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SPWR vs. CSIQ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SunPower Corporation (SPWR) and Canadian Solar Inc. (CSIQ). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	SPWR	CSIQ	Difference
Sharpe ratio Return per unit of total volatility	-0.21	0.61	-0.82
Sortino ratio Return per unit of downside risk	0.29	1.43	-1.14
Omega ratio Gain probability vs. loss probability	1.03	1.19	-0.16
Calmar ratio Return relative to maximum drawdown	-0.40	0.82	-1.21
Martin ratio Return relative to average drawdown	-0.79	1.93	-2.73
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPWR vs. CSIQ - Sharpe Ratio Comparison

The current SPWR Sharpe Ratio is -0.21, which is lower than the CSIQ Sharpe Ratio of 0.61. The chart below compares the historical Sharpe Ratios of SPWR and CSIQ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SPWR	CSIQ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.21	0.61	-0.82
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.32	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.05	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.33	-0.01	-0.32

Correlation

The correlation between SPWR and CSIQ is 0.18, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

SPWR vs. CSIQ - Dividend Comparison

Neither SPWR nor CSIQ has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

SPWR vs. CSIQ - Drawdown Comparison

The maximum SPWR drawdown since its inception was -97.59%, roughly equal to the maximum CSIQ drawdown of -96.02%. Use the drawdown chart below to compare losses from any high point for SPWR and CSIQ.

Drawdown Indicators

	SPWR	CSIQ	Difference
Max Drawdown Largest peak-to-trough decline	-97.59%	-96.02%	-1.57%
Max Drawdown (1Y) Largest decline over 1 year	-44.08%	-61.35%	+17.27%
Max Drawdown (5Y) Largest decline over 5 years	—	-86.06%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-89.46%	—
Current Drawdown Current decline from peak	-88.02%	-78.41%	-9.61%
Average Drawdown Average peak-to-trough decline	-46.97%	-60.96%	+13.99%
Ulcer Index Depth and duration of drawdowns from previous peaks	22.08%	25.90%	-3.82%

Volatility

SPWR vs. CSIQ - Volatility Comparison

The current volatility for SunPower Corporation (SPWR) is 17.00%, while Canadian Solar Inc. (CSIQ) has a volatility of 36.84%. This indicates that SPWR experiences smaller price fluctuations and is considered to be less risky than CSIQ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPWR	CSIQ	Difference
Volatility (1M) Calculated over the trailing 1-month period	17.00%	36.84%	-19.84%
Volatility (6M) Calculated over the trailing 6-month period	50.43%	78.87%	-28.44%
Volatility (1Y) Calculated over the trailing 1-year period	85.50%	99.99%	-14.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	102.62%	70.47%	+32.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	102.62%	62.91%	+39.71%

Financials

SPWR vs. CSIQ - Profitability Comparison

The chart below illustrates the profitability comparison between SunPower Corporation and Canadian Solar Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

SPWR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, SunPower Corporation reported a gross profit of 32.04M and revenue of 70.01M. Therefore, the gross margin over that period was 45.8%.

CSIQ - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Canadian Solar Inc. reported a gross profit of 124.40M and revenue of 1.22B. Therefore, the gross margin over that period was 10.2%.

SPWR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, SunPower Corporation reported an operating income of -3.44M and revenue of 70.01M, resulting in an operating margin of -4.9%.

CSIQ - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Canadian Solar Inc. reported an operating income of -85.28M and revenue of 1.22B, resulting in an operating margin of -7.0%.

SPWR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, SunPower Corporation reported a net income of -15.80M and revenue of 70.01M, resulting in a net margin of -22.6%.

CSIQ - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Canadian Solar Inc. reported a net income of -86.34M and revenue of 1.22B, resulting in a net margin of -7.1%.